/**
 *		Licensed to the Apache Software Foundation (ASF) under one
 *     or more contributor license agreements.  See the NOTICE file
 *     distributed with this work for additional information
 *     regarding copyright ownership.  The ASF licenses this file
 *     to you under the Apache License, Version 2.0 (the
 *     "License"); you may not use this file except in compliance
 *     with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *      Unless required by applicable law or agreed to in writing,
 *     software distributed under the License is distributed on an
 *     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *     KIND, either express or implied.  See the License for the
 *     specific language governing permissions and limitations
 *     under the License.
 *     
 *     Image Resizer Project
 */
package image.resizer.ui.config;

import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;


public class NumberTextListener implements DocumentListener {

	private String text;	
	private JTextField textField;
	
	public NumberTextListener(JTextField textField) {
		this.textField = textField;
	}
	
	public void changedUpdate(DocumentEvent e) {
	}
	
	public void insertUpdate(DocumentEvent e) {
		refresh();
	}

	public void removeUpdate(DocumentEvent e) {
		refresh();
	}

	private void refresh()
	{
		text = textField.getText();
	}
	
	public int getNumber()
	{
		int val = -1;
		try
		{
			val = Integer.parseInt(text);
		}
		catch (Exception e) {
			// Nothing to do
		}
		return val;
	}
	
	public String getTextValue()
	{
		return text;
	}
}
